B&K Precision 1651A Triple Output DC Power Supplies, Dual analog DisplayLinear power supply unit provides a constant source of DC voltage and current for powering and testing electronic devices Two outputs supply adjustable voltage up to 24VDC and current up to 500mA Third output supplies fixed voltage of 5VDC and current of 4 amp Display shows current and voltage for all outputs simultaneously Outputs can be connected in series to supply more voltage, or they can be connected in parallel to supply more current This B&K